Cheerson CX-10 Repair Guide and Tips

For all of you who received Cheerson CX-10 mini-quadcopters as holiday gifts and are learning to fly, bookmark this page because you’ll need it soon.  Here’s a list of some common repairs – you might as well learn about it now.

FYI – The Cheerson CX-10 is also sometimes sold as the Cheerson Q4.  This repair guide also largely applies to the similar Cheerson CX-10A and Cheerson CX-10C models.

Also just for reference, here is the manual for the Cheerson CX-10.

0.05 Ounces of Prevention

If you received this as a gift:

Cheerson CX-10

and it didn’t come with a prop guard (which weighs 0.05 ounces / 1.5g), then you should definitely get one. It will dramatically reduce the number of broken propellers you have to deal with, particularly while you are first learning.

Blade Guard and 16 replacement propellers for Cheerson CX-10
2 blade guards for the Cheerson CX-10

Replacing the propellers on your CX-10

Removing the propellers: The propellers can be removed from the motor shaft by pulling them straight upwards.  Sometimes they are loose, but sometimes it can take a little force. A pair of wirecutters gently put around the prop can help pry off the more stubborn ones.  Just take care not to bend the motor shaft or nick it.

wirecutter for propeller removal

Proper Propeller Placement: You will need to remove the propellers when they break, but even more often something will get tangled in them (in my house, that tends to be hair or carpet fuzz). Removing the propeller makes it easy to remove the offending tangle.

Cheerson CX-10 propeller placement
Arrows indicate motor rotation direction. Make sure you put the propeller on so that when it rotates it pulls the quadcopter up!

The key thing to remember is that when you put the propellers back, you need to match the direction of rotation with the propeller.  There are two types of propellers- some of them rotate clockwise, and some rotate counterclockwise. There is actually a letter code marking the propellers, but it’s easy enough to just remember the direction of rotation of the motor, and make sure that when the propeller rotates it should be pulling the quadcopter upwards.

Shorted out motor wires

This is a common issue. On one of my quadcopters, the motor wiring was worn and exposed on all four motors.  This is what it looks like:

shorted motor wire on Cheerson CX-10IMG_1066-zoom
Worn insulation and exposed wiring on Cheerson CX-10 motor

The problem is that the wiring will sometimes short against the metal body of the motor.

In my case, the quadcopter would still turn on and pair with the controller, but then once you tried to fly it the motors would spin for a half-second and then stop.  The LEDs would then start blinking like it need to be charged again (even though it had just been charged).

On another quadcopter, it would fly for a few seconds, and then fall out of the sky.  Amusing, but frustrating.

Here is the fix:

  1. Remove the propellers
  2. Unscrew the four screw in the bottom.
  3. Gently pry off the the bottom white enclosure (note the clips on each end of the PCB)
  4. Take off the blue case

You should end up with something that looks like this:

IMG_1062
CX-10 parts disassembled
IMG_1063
CX-10 PCB, motors, and battery.

5. Fixing the insulation on the worn motors is tricky because it might make it too thick to slide the motor back into the case.  In one case, I just removed the motor and remounted it so that the exposed part is away from the motor body.  In another case I used tweezers to put in a place a very small piece of black electrical tape to insulate the wire.

6. Put everything back together (be careful when replacing the propellers!)

Some other posts about the CX-10

9 thoughts on “Cheerson CX-10 Repair Guide and Tips”

  1. my cheerson cx-10c isnt taking off. when I try to take off the motors will move but it wont take off as if something is weighing it down. I have not done a single mod other than gluing a broken landing gear back in place.

    1. It does sound like the propellers are installed so they’re not angled in the right direction. I’m assuming that you checked that all the propellers are installed properly and angled in the right direction as I describe in the photo. If that’s ok, then it could be that the motors have a shorted wire (in which case it will spin for a bit than stop), or one of the motors is seized. You can tell this by spinning it by hand when it is off and seeing if it spins freely.

  2. One of my propellers doesn’t move when I fly it, it just stays still while the other 3 spin and it keeps flipping over. There is also a weird burning smell that happens when I fly, which I worry about.

    1. It might be that the motor is seized or shorted. It may need to be replaced… but it might be easier to just buy an entirely new quadcopter rather than repairing it.

  3. My cx-10d takes off, rises up about a foot, then cuts off. I can do it over and over, but it won’t stay in the air more than a second. I’ve made sure the battery is charged fully.

  4. Its been just a day that i have bought this cx 10……i was flying it well till……. It kept going on one side and dod not take off…… Then i changed the propellers and somehow it managed to stay still…. But it wont take off

  5. My camera wires became disconnected from the circuit board. Has anyone a diagram of the circuit board with all connectors posted?

  6. I’m also having throttle problems. Motors stop 1 foot from the floor. It will fly short distance and stop. Will not hover. Batteries run out after 3 minutes. Very dissatisfied with Cheerson CX-10a mini drone.

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